SINGLE-SIDED LINEAR INDUCTION MOTOR (SLIM); A STUDY OF THRUST AND LATERAL FORCES

The report represents a steady-state linear analysis of single-sided linear induction motors. Electromagnetic field equations are used to describe the magnetic field distribution across the air gap and inside the reaction rail, from which the induced current density and force vectors are determined. The tangential component of the magnetic field and the secondary current result in a body force perpendicular to the stator surface. Analytical expressions for this lateral force and the thrust parallel to the stator surface are derived. Special attention is given to the magnitude of the lateral force under various design conditions. It appears that a SLIM can be used for both the propulsion and the levitation of a high-speed vehicle for ground transportation. (Author)

• Corporate Authors:

  TRW Systems Group

  Washington Operations
  McLean, VA  United States  22101
• Authors:
  • Lipkis, R S
  • Wang, T C
• Publication Date: 1971-6

Media Info

• Pagination: 127 p.

Subject/Index Terms

• TRT Terms: Electromagnetism; Force; High speed ground transportation; Induction motors; Intelligent transportation systems; Linear induction motors; Mathematical models; Thrust
• Old TRIS Terms: Advanced systems; Electromagnetic theory
• Subject Areas: Operations and Traffic Management; Railroads;

Filing Info

• Accession Number: 00039302
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: 06818-W032-RO-00 Final Rpt, FRA-RT-72-25
• Contract Numbers: DOT-C-353-66
• Files: TRIS
• Created Date: Nov 24 1973 12:00AM